Apparatus for concentrating and separating ores



(No Model.) 2 Sheets--Snee 1.

M. J. BUTZEL.

APPARATUS FOR GONGENTRATING AND SBPARATING oms.

N0.'2512,731. vPaLte-nted Jan. 24,188

N. PETERS, Pholn-Llhugnphnn Wlsh'mglorl, D. C.

(No Model.) 2 Sheets-Sheet 2.

M. J. BUYTZBL. APPARATUS POR- GONCENTRATING AND SEPARATING DRES.

No. 252,731. D Patented Jem. 24,1882.

Z'gfe Q et 5.0

WM'JVESSES VNITE@ STATES Armar OFFICE.-

MARTIN J. BUTZEL, OF BOULDER, COLORADO.

APPARATUS FOR CONVCENTRATING AND SEPARATING ORES.

SPECIFICATION forming part of Letters Patent No. 252,731, 'dated January 24, 1812.

Application lcd Otober 25, 1881. (No model.)

.To all whom it may concern Be it known that I, MARTIN J. BUTZEL, a citizen of the United States, residing at Boulder, in the county ot' Boulder and State ot' Colorado, have invented certain new and useful Improvements in Apparatus for Concentrating and Separating Ores, of which the folllowing is a specitcation, reference being had therein to the accompanying drawings.

My invention consists of a novel apparatus for concentrating gold, silver, and other ores, which will be fully understood by the'following description and claim.

In the accompanying drawings, Figure 1 is a side view of my concentrator. Fig. 2 is a detached section ofthe hollow cone of the concentratorandpartsconueetedtherewith. Figs. 3 and 4 are detached views of the hopper or box. Fig. 5 is a detached view ofthe concentrator and water-tank for receiving heavy concentrates. Fig. 6 represents an end view of the feeding-trough. Fig. 7 is a top view of the skimmer attachment on the top ofthe concentrator. Fig. 8 is a detached view ofa part ofone ofthe inclined boxes for receiving heavy concentrates.

In the drawings, A represents a tank or box for receiving heavy concentrates.

B is the coneentrator.

O is the fcedingtrough.

D is a gutter for conveying otir'efuse through the pipe E'.

F F are boxes or receivers for concentrated material.

G is a scaffolding for supporting' platform H, through which pass elevating-screws x se.

I is a water-tank.

J is a rubber or exible pipe for conveying water to the eoneentrator. y

` K is a receiving-pipe for receiving water and the material to be concentrated.

L L are pipes for conveying the material to be concentrated from feed-box G to receivingpipe K. l

M is a pipe conveying water to the small pipes N N, which pass through the concentrator and run under the boxes on the inside thereof. These pipes are perforated and throw tine jets ot' water toward the inside of the concentrator to prevent any light particles from l Hows from box C down the pipes L, and rises roo the supply x x are screws for elevating and loweringtank I.

Y is a lever for working screws a' 4i. is a stop-cockfor regulating the supply of water through pipe M. `a a are screws to secure covers to boxes and the man-holetopipe M.

Z is a skimmer attachment to be fastened on the top of the coneentrator when treating tell-urium ores or other substance where valuable-particles are liable to rise to the surface.

a a is the inner rim of the iron skimmer. b b is the outer rim ot' skimmer. c c are thumbscrews for raising or lowering the skimmer so as to take only the surface part of the overtlow, while the rest passes under the skimmerl and over the rim of the eoncentrator.

g g is a tine wire screen to save valuable par-v ticles on the surface of the overow.

h h are cross bars or rods for connecting outer rim, b b, with inner rim, a a', and supporting the screen g g.

Fig.. S represents a section of one of the boxes or eoncentrators F, showing the fastening ot' the trap or cover U.

d is an iron bar passing across the end of the box on the inside with a screw-hole in the center of said bar. v

5 is a screw passing through the trap or corner of the box into the screw-hole in the center of bar d d to fasten said trap or cover.

The pulverized ore is placed in box O, and sufficient water added thereto to make a thin tiowing mortar or pulp, the concentrator B having been previously tilled with water from the reservoir I by means ot' pipe J. The pulp in the cone of the concentra-tor round the central space, z, Fig. 7, and covering the screen The overflow passes ot'by trough D and pipe E, Fig. 1. The heavy concentrates settle down according to their specific gravity in the inclined outside boxes or receivers, F, and are afterward removed by openirg the traps U, Fig. S. The heavy concentrates which settle in tank A, Fig. l, are removed through man hole T.

By this apparatus I not only concentrate but also separate ditl'erent minerals according to their specific gravity, the heavier being found in the lower boxes or receivers F, while the lighter materials pass into the upper re ceivers F.

` MARTIN J. BUTZEL. Witnesses ALPIIEUs WRIGHT, II. E. ROWLAND. 

